CD3 FITC - CD16&56 PE

The CD3 epitope is expressed on the epsilon chain of the CD3/T cell antigen receptor (TcR) complex. CD3 is present on 65-85% of thymocytes and has a mitogenic effect on peripheral blood T cells. Identification of human T cells expressing the 22-28,000 M.W. surface antigen. CD16 identifies human NK cell antigen expressing the 50 - 70 kDa M.W. surface antigen associated with the IgG Fc receptor III on NK cells and Neutrophils. CD16 is expressed on approximately 15% of peripheral blood lymphocytes and is present on all resting NK cells. CD16 may be expressed on CD3 T cells from certain individuals. CD56, M.W.150,000 is expressed on approximately 10-25% of human peripheral blood lymphocytes. CD56 (NKH-1) is expressed on human peripheral blood natural killer cells, representing a pan NK-cell antigen. Expressed on non-MHC-restricted cytotoxic T cells.